Model: 66904H8-16

Shoulder Screw

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.624 inches and 0.690 inches
Fastener Length
Between 1.634 inches and 1.680 inches
Head Style
Flat countersunk
Head Diameter
Between 1.007 inches and 1.017 inches
Shoulder Diameter
0.5297 inches first shoulder and 0.5307 inches first shoulder
Shoulder Length
0.788 inches first shoulder and 0.808 inches first shoulder
Internal Drive Style
High-torque
Thread Diameter
0.500 inches
Thready Qty Per Inch (tpi)
20
Countersink Angle
Between 90.0 degrees and 110.0 degrees
Shoulder Shape
Round first shoulder
Part Name Assigned By Controlling Agency
Navy special project
Material
Steel
Material Specification
23-105 fscm 176301 mfr ref single material response
Surface Treatment
Cadmium
Surface Treatment Specification
Ps 13145 fscm 76301 mfr ref single treatment response
Thread Series Designator
Unjf
NSN
5305-01-091-7926
Part Number
66904H8-16
Description
Screw,shoulder
CAGE
80539

Part 66904H8-16 NSN 5305-01-091-7926

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
22846
FIIG:
A003B0
Concept No.:
App. Key:
SL
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
--
WCC:
713
TCC:
Z
SHC:
9
ACC:
Construction Materials

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